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40 votes
40 votes
(7x² + 4y²)(5x² - y²)

User Irexistus
by
2.8k points

1 Answer

18 votes
18 votes

Answer:

okay so step by step explanation,

first multiply 7
x^(2) with 5
x^(2) and -
y^(2)

35
x^(4)-7
x^(2)
y^(2)

then do the second one

20
x^(2)
y^(2)-4
y^(4)

take the sum of those,

35
x^(4)+13
x^(2)
y^(2)-4
y^(4)

good luck<3!

User Vikk
by
2.7k points